My niece's computer has SPYWARE GUARD 2008 Trojan/virus. She has Trend PC-cillin Internet Security 2006, and it is up to date. I have attempted to install HiJackThis, and Malwarebyte's Anti-Malware, and neither will install. I tried renaming the files first, and still no. On both, I see the first screen for an instant, then nothing else. I also tried booting to Safe Mode and manually delete files and Registry settings as suggested. I've used HiJackThis and MBAM before to fix these things, but I'm stumped when they won't run or install.
The solutions I'm attempting to follow are: